Nuts and seeds - potent antagonists of iodine, manganese and sulfur - the former two essential for thyroid hormone production and endocrine health; the latter for connective tissue, collagen. Even without an overt nut/seed allergy, regular intake may become an issue. Suggest avoiding if suffering an endocrine/thyroid disorder. For reviews of all the products I have purchased from iHerb, please click my username above.